Because lists are mutable it is possible to write functions that manipulate lists without returning anything. To demonstrate your understanding of mutable lists, write a function that removes objects from a list.
Details
  Write a function called remove_all(a_list, item).  The
  function should modify a_list to remove all items in
  the list that are equal to item without changing the
  order of the other items.  Note that the function should not return
  anything.  Be careful iterating over a list while removing from it.
Make sure your program handles all necessary cases gracefully. What additional test cases should you check?
Example
>>> my_list = [1, 2, 3, 2, 1] >>> remove_all(my_list, 2) >>> print(my_list) >>> [1, 3, 1]
Submission
Submit your program as a .py file on the course Inquire page before class on Monday November 3rd.